I recently had this with an X that I broke up with back in the early 2000s. I had no interest in contacting her but she added me on Facebook and wanted to call me. We talked for a few hours and I realized that I had absolutely nothing unsettled with her. She was obviously still a bit hung up on me so I said everything I could think of to say that would give her some sort of peace; like that I obviously wasn't the right guy for her. We made some posts back and forth on Facebook less than a dozen times and I haven't heard from her in a few years. I assume she eventually found someone that was better for her than I was.